CA2409634A1 - Low power starter for catalytic heaters - Google Patents
Low power starter for catalytic heaters Download PDFInfo
- Publication number
- CA2409634A1 CA2409634A1 CA002409634A CA2409634A CA2409634A1 CA 2409634 A1 CA2409634 A1 CA 2409634A1 CA 002409634 A CA002409634 A CA 002409634A CA 2409634 A CA2409634 A CA 2409634A CA 2409634 A1 CA2409634 A1 CA 2409634A1
- Authority
- CA
- Canada
- Prior art keywords
- starter
- pad
- catalyst pad
- heater
- catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
- F23C13/02—Apparatus in which combustion takes place in the presence of catalytic material characterised by arrangements for starting the operation, e.g. for heating the catalytic material to operating temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/12—Radiant burners
- F23D14/18—Radiant burners using catalysis for flameless combustion
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
A catalytic heater 10 has an insulation pad 36 and a catalyst pad 34 mounted in face-to-face relation within an enclosure 11 having an open front face 20.
A
starter 48 is mounted within the catalyst pad and is effective for preheating of the catalyst pad. Fuel gas is supplied to the rear face of the insulation pad and air is supplied to the front face of the catalyst pad, so that a catalytic reaction occurs generally when the catalyst pad and sear the ope front face. After the catalytic reaction begins, electrical energy is ceased to the starter. The starter preferably comprises a quartz-halogen lamp of a relatively small size which is mounted within the catalyst pad.
A
starter 48 is mounted within the catalyst pad and is effective for preheating of the catalyst pad. Fuel gas is supplied to the rear face of the insulation pad and air is supplied to the front face of the catalyst pad, so that a catalytic reaction occurs generally when the catalyst pad and sear the ope front face. After the catalytic reaction begins, electrical energy is ceased to the starter. The starter preferably comprises a quartz-halogen lamp of a relatively small size which is mounted within the catalyst pad.
Claims (32)
1. A catalytic heater fueled by a combustible gas source, comprising:
a housing defining an enclosure having an open front face;
a fuel inlet line having a fuel discharge within a rear portion of said enclosure;
a diffusion pad within said enclosure spaced between said open front face and said fuel discharge, a rear face of said diffusion pad being supplied with fuel gas for providing a catalytic reaction;
a catalyst pad spaced opposite said fuel inlet fine relative to said insulation pad and positioned within said enclosure adjacent said open front face, said catalyst pad having a rear face adjacent a front face of said diffusion pad and a front face exposed-to ambient air from said open front face of said enclosure; and an electrically powered starter for preheating said catalyst pad, said starter being positioned within a pocket extending from an entrance opening in a side face of said catalyst pad, a majority of said pocket being spaced from said diffusion pad.
a housing defining an enclosure having an open front face;
a fuel inlet line having a fuel discharge within a rear portion of said enclosure;
a diffusion pad within said enclosure spaced between said open front face and said fuel discharge, a rear face of said diffusion pad being supplied with fuel gas for providing a catalytic reaction;
a catalyst pad spaced opposite said fuel inlet fine relative to said insulation pad and positioned within said enclosure adjacent said open front face, said catalyst pad having a rear face adjacent a front face of said diffusion pad and a front face exposed-to ambient air from said open front face of said enclosure; and an electrically powered starter for preheating said catalyst pad, said starter being positioned within a pocket extending from an entrance opening in a side face of said catalyst pad, a majority of said pocket being spaced from said diffusion pad.
2. The catalytic heater as defined in claim 1, wherein said pocket is enclosed by said catalyst pad.
3. The catalytic heater as defined in claim 1, further comprising:
a perforated plate adjacent the, rear face of said diffusion pad, whereby a fuel gas is supplied to said perforated plate for passing through said insulation pad.
a perforated plate adjacent the, rear face of said diffusion pad, whereby a fuel gas is supplied to said perforated plate for passing through said insulation pad.
4. The catalytic heater as defined in claim 3, further comprising:
a fuel gas chamber within said enclosure adjacent said perforated plate, said fuel discharge positioned within said chamber for passing through said perforated plate.
a fuel gas chamber within said enclosure adjacent said perforated plate, said fuel discharge positioned within said chamber for passing through said perforated plate.
5. The catalytic heater as defined in claim 4, wherein said enclosure has a rectangular shape and has a rear wall spaced from said perforated plate to define said fuel gas chamber between said rear wall and said perforated plate.
6. The catalytic heater as defined in claim 1, wherein said starter comprises a quartz-halogen lamp inserted within said pocket.
7. The catalytic heater as defined in claim 1, wherein said starter has a wattage of less than about 15 watts.
8. The catalytic heater as defined in claim 1, wherein said catalyst pad has a rectangular shape and said starter extends within a side of said catalyst pad a distance less than about 1/3 a spacing between said side and an opposing side of said catalyst pad.
9. The catalytic heater as defined in claim 1, wherein the starter has a width less than about 80% of a thickness of the catalyst pad.
10. The catalytic heater as defined in claim 1, further comprising:
a portable source of electrical energy adjacent said housing to supply electrical energy to said starter for preheating of said catalyst pad.
a portable source of electrical energy adjacent said housing to supply electrical energy to said starter for preheating of said catalyst pad.
11. The catalytic heater as defined in claim 10, further comprising:
a timer for said source of electrical energy to supply electrical energy to said starter for a selected time period sufficient to heat the catalytic pad to a selected temperature.
a timer for said source of electrical energy to supply electrical energy to said starter for a selected time period sufficient to heat the catalytic pad to a selected temperature.
12. The catalytic heater as defined in claim 1, further comprising:
a solenoid operated valve to control the supply of gas from said pipeline to said fuel gas chamber.
a solenoid operated valve to control the supply of gas from said pipeline to said fuel gas chamber.
13. The catalytic heater as defined in claim 12, further comprising:
a controller to permit a selected supply of electrical energy to said solenoid operated valve, said controller effective to close said solenoid operated valve and stop the supply of fuel gas to said heater when the temperature of the catalytic reaction in said heater has reached a predetermined level.
a controller to permit a selected supply of electrical energy to said solenoid operated valve, said controller effective to close said solenoid operated valve and stop the supply of fuel gas to said heater when the temperature of the catalytic reaction in said heater has reached a predetermined level.
14. The catalytic heater as defined in claim 13, further comprising:
a temperature sensor to sense the temperature of the catalytic reaction in said heater, said controller responsive to said temperature sensor to close said valve and stop the supply of fuel gas to said heater.
a temperature sensor to sense the temperature of the catalytic reaction in said heater, said controller responsive to said temperature sensor to close said valve and stop the supply of fuel gas to said heater.
15. The catalytic heater as defined in claim 14, wherein said controller is effective to stop the supply of electrical energy to said starter upon said temperature sensor sensing the catalytic reaction reaching a selected high temperature.
16. A catalytic heater fueled by a combustible gas source, comprising:
a housing defining an enclosure having an open front face;
a fuel inlet line having a fuel discharge within a rear portion of said enclosure;
a diffusion pad within said enclosure spaced between said open front face and said fuel discharge, a rear face of said diffusion pad being supplied with fuel gas for providing a catalytic reaction;
a catalyst pad spaced opposite said fuel inlet line relative to said insulation pad and positioned within said enclosure adjacent said open front face, said catalyst pad having a rear face adjacent a front face of said diffusion pad and a front face exposed to ambient air from said open front face of said enclosure; and an electrically powered starter for preheating said catalyst pad, said starter having a perimeter area defined by the starter less than bout 2% of a flow through area of the catalyst pad.
a housing defining an enclosure having an open front face;
a fuel inlet line having a fuel discharge within a rear portion of said enclosure;
a diffusion pad within said enclosure spaced between said open front face and said fuel discharge, a rear face of said diffusion pad being supplied with fuel gas for providing a catalytic reaction;
a catalyst pad spaced opposite said fuel inlet line relative to said insulation pad and positioned within said enclosure adjacent said open front face, said catalyst pad having a rear face adjacent a front face of said diffusion pad and a front face exposed to ambient air from said open front face of said enclosure; and an electrically powered starter for preheating said catalyst pad, said starter having a perimeter area defined by the starter less than bout 2% of a flow through area of the catalyst pad.
17. The catalytic heater as defined in claim 16, wherein said starter is enclosed by said catalyst pad.
18. The catalytic heater as defined in claim 16, wherein said starter comprises a quartz-halogen lamp inserted within said pocket.
19. The catalytic heater as defined in claim 16, wherein said starter has a wattage of less than about 15 watts.
20. The catalytic heater as defined in claim 16, wherein said catalyst pad has a rectangular shape and said starter extends within a side of said catalyst pad a distance less than about 1/3 a spacing between said side and an opposing side of said catalyst pad.
21. The catalytic heater as defined in claim 16, wherein the starter has a cross-sectional area less than about 2% of the flow through area of the catalyst pad.
22. The catalytic heater as defined in claim 16, further comprising:
a portable source of electrical energy adjacent said housing to supply electrical energy to said starter for preheating of said catalyst pad.
a portable source of electrical energy adjacent said housing to supply electrical energy to said starter for preheating of said catalyst pad.
23. A method for controlling the heating of a catalytic heater having a catalyst pad and an adjacent diffusion pad within an enclosure having an open front face defining a catalyst pad flow through area, said method comprising:
mounting a starter within said catalyst pad for preheating said catalyst pad, said starter having a wattage of less than about 15 watts;
supplying a fuel gas to said heater for passing through said diffusion pad and said catalyst pad for mixture with air from said open front face of said enclosure;
providing less than about 15 watts of electrical energy to said starter;
and stopping the supply of electrical energy to said starter upon heating of said catalyst pad to a selected temperature.
mounting a starter within said catalyst pad for preheating said catalyst pad, said starter having a wattage of less than about 15 watts;
supplying a fuel gas to said heater for passing through said diffusion pad and said catalyst pad for mixture with air from said open front face of said enclosure;
providing less than about 15 watts of electrical energy to said starter;
and stopping the supply of electrical energy to said starter upon heating of said catalyst pad to a selected temperature.
24. The method as defined in claim 23, further comprising:
mounting said starter completely within said catalyst pad and spaced from said diffusion pad.
mounting said starter completely within said catalyst pad and spaced from said diffusion pad.
25. The method as defined in claim 23, further comprising:
providing the starter for mounting within said catalyst pad which has a starter perimeter area less than about 2% of the catalyst pad flow through area.
providing the starter for mounting within said catalyst pad which has a starter perimeter area less than about 2% of the catalyst pad flow through area.
26. The method as defined in claim 25, further comprising:
providing the starter with a cross-sectional area less than 2% of the catalyst pad flow through area.
providing the starter with a cross-sectional area less than 2% of the catalyst pad flow through area.
27. The method as defined in claim 23, further comprising:
providing the starter with a wattage of less than about 10 watts, and providing less than about 10 watts of electrical energy to said starter.
providing the starter with a wattage of less than about 10 watts, and providing less than about 10 watts of electrical energy to said starter.
28. The method as defined in claim 23, wherein the starter comprises a quartz-halogen lamp.
29. The method as defined in claim 23, wherein the catalyst pad has a rectangular shape and said starter extends within a side of said catalyst pad a distance less than about 1/3 of spacing between said side and an opposing side of said catalyst pad.
30. The method as defined in claim 23, further comprising:
providing a temperature sensor to sense the temperature of the catalytic reaction; and stopping the supply of electrical power to said starter in response to the temperature sensor.
providing a temperature sensor to sense the temperature of the catalytic reaction; and stopping the supply of electrical power to said starter in response to the temperature sensor.
31. The method as defined in claim 23, further comprising:
providing a solenoid operated valve to control the supply of fuel gas to said heater; and controlling electrical energy to said solenoid operated valve to close said solenoid operated valve and stop the supply of fuel gas to said heater.
providing a solenoid operated valve to control the supply of fuel gas to said heater; and controlling electrical energy to said solenoid operated valve to close said solenoid operated valve and stop the supply of fuel gas to said heater.
32. The method as defined in claim 23, further comprising:
providing a timer for said source of electrical energy to said starter for ceasing the supply of electrical energy to said starter after a selected time period.
providing a timer for said source of electrical energy to said starter for ceasing the supply of electrical energy to said starter after a selected time period.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/000,664 US6712601B2 (en) | 2001-10-31 | 2001-10-31 | Low power starter for catalytic heaters |
| US10/000,664 | 2001-10-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2409634A1 true CA2409634A1 (en) | 2003-04-30 |
| CA2409634C CA2409634C (en) | 2009-12-29 |
Family
ID=21692497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002409634A Expired - Fee Related CA2409634C (en) | 2001-10-31 | 2002-10-24 | Low power starter for catalytic heaters |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US6712601B2 (en) |
| CA (1) | CA2409634C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7138093B2 (en) * | 2003-07-08 | 2006-11-21 | Mckay Randy | Heat exchanger device |
| WO2005015318A1 (en) * | 2003-07-17 | 2005-02-17 | Kodak Polychrome Graphics Gmbh | Apparatus and method for treating imaging materials |
| WO2012037092A1 (en) * | 2010-09-14 | 2012-03-22 | The Board Of Regents Of The University Of Texas System | Portable body warming device |
| US10532315B1 (en) | 2015-08-27 | 2020-01-14 | Advanced Catalyst Systems Llc | System for flameless catalytic destruction of fugitive organics and producing environmentally clean hot gas for other uses of thermal energy |
| IT202100010343A1 (en) * | 2021-04-23 | 2022-10-23 | Hb Srl | HEATING DEVICE BY CATALYTIC COMBUSTION BY EMISSION OF INFRARED RAYS. |
| WO2022256209A1 (en) * | 2021-06-03 | 2022-12-08 | Catco Usa Llc | System and method for heating a fluid passageway |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3880235A (en) | 1969-12-30 | 1975-04-29 | Sun Oil Co Delaware | Method and apparatus for igniting well heaters |
| US3833338A (en) | 1971-06-08 | 1974-09-03 | Cooperheat | Surface combustion burner |
| US3784353A (en) * | 1972-01-28 | 1974-01-08 | G Chapurin | Flameless gas catalytic heater |
| US3911896A (en) * | 1974-07-31 | 1975-10-14 | Walbro Corp | Catalytic heater |
| US3901213A (en) * | 1974-08-02 | 1975-08-26 | Walbro Corp | Catalytic heater control |
| JPS6183818A (en) * | 1984-09-28 | 1986-04-28 | Susumu Nakagawa | Catalytic heater |
| CA2015638C (en) | 1990-04-27 | 1995-11-14 | Alan Kirby | Catalytic heater |
| US5423669A (en) * | 1993-08-19 | 1995-06-13 | Chapman; Michael | Apparatus for thermoforming shaped articles |
| US6092765A (en) * | 1997-06-09 | 2000-07-25 | White; Richard P. | Infrared deicing system for aircraft |
| US5993192A (en) | 1997-09-16 | 1999-11-30 | Regents Of The University Of Minnesota | High heat flux catalytic radiant burner |
-
2001
- 2001-10-31 US US10/000,664 patent/US6712601B2/en not_active Expired - Lifetime
-
2002
- 2002-10-24 CA CA002409634A patent/CA2409634C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US20030082493A1 (en) | 2003-05-01 |
| US6712601B2 (en) | 2004-03-30 |
| CA2409634C (en) | 2009-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20171024 |